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+#########################
+Upgrading from 1.2 to 1.3
+#########################
+
+.. note:: The instructions on this page assume you are running version
+	1.2. If you have not upgraded to that version please do so first.
+
+Before performing an update you should take your site offline by
+replacing the index.php file with a static one.
+
+Step 1: Update your CodeIgniter files
+=====================================
+
+Replace the following directories in your "system" folder with the new
+versions:
+
+.. note:: If you have any custom developed files in these folders please
+	make copies of them first.
+
+-  application/**models**/ (new for 1.3)
+-  codeigniter (new for 1.3)
+-  drivers
+-  helpers
+-  init
+-  language
+-  libraries
+-  plugins
+-  scaffolding
+
+Step 2: Update your error files
+===============================
+
+Version 1.3 contains two new error templates located in
+application/errors, and for naming consistency the other error templates
+have been renamed.
+
+If you **have not** customized any of the error templates simply replace
+this folder:
+
+-  application/errors/
+
+If you **have** customized your error templates, rename them as follows:
+
+-  404.php = error_404.php
+-  error.php = error_general.php
+-  error_db.php (new)
+-  error_php.php (new)
+
+Step 3: Update your index.php file
+==================================
+
+Please open your main index.php file (located at your root). At the very
+bottom of the file, change this::
+
+	require_once BASEPATH.'libraries/Front_controller'.EXT;
+
+To this::
+
+	require_once BASEPATH.'codeigniter/CodeIgniter'.EXT;
+
+Step 4: Update your config.php file
+===================================
+
+Open your application/config/config.php file and add these new items::
+
+
+    /*
+    |------------------------------------------------
+    | URL suffix
+    |------------------------------------------------
+    |
+    | This option allows you to add a suffix to all URLs.
+    | For example, if a URL is this:
+    |
+    | example.com/index.php/products/view/shoes
+    |
+    | You can optionally add a suffix, like ".html",
+    | making the page appear to be of a certain type:
+    |
+    | example.com/index.php/products/view/shoes.html
+    |
+    */
+    $config['url_suffix'] = "";
+
+
+    /*
+    |------------------------------------------------
+    | Enable Query Strings
+    |------------------------------------------------
+    |
+    | By default CodeIgniter uses search-engine and
+    | human-friendly segment based URLs:
+    |
+    | example.com/who/what/where/
+    |
+    | You can optionally enable standard query string
+    | based URLs:
+    |
+    | example.com?who=me&what=something&where=here
+    |
+    | Options are: TRUE or FALSE (boolean)
+    |
+    | The two other items let you set the query string "words"
+    | that will invoke your controllers and functions:
+    | example.com/index.php?c=controller&m=function
+    |
+    */
+    $config['enable_query_strings'] = FALSE;
+    $config['controller_trigger'] = 'c';
+    $config['function_trigger'] = 'm';
+
+Step 5: Update your database.php file
+=====================================
+
+Open your application/config/database.php file and add these new items::
+
+
+    $db['default']['dbprefix'] = "";
+    $db['default']['active_r'] = TRUE;
+
+Step 6: Update your user guide
+==============================
+
+Please also replace your local copy of the user guide with the new
+version.